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(5S,10aS)-9-<<5-<(2S-trans)-2,5-dihydro-3,6-dimethoxy-2-(1-methylethyl)pyrazin-5-yl>methyl-1-methyl-1H-imidazol-4-yl>thio>-6,8-dimethoxy-5-<(4-methoxyphenyl)methyl>-1,5,10,10a-tetrahydroxazolo<3,4-b>isoquinolin-3(3H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221333-40-0

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221333-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221333-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,3,3 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221333-40:
(8*2)+(7*2)+(6*1)+(5*3)+(4*3)+(3*3)+(2*4)+(1*0)=80
80 % 10 = 0
So 221333-40-0 is a valid CAS Registry Number.

221333-40-0Upstream product

221333-40-0Relevant academic research and scientific papers

Synthetic studies on the starfish alkaloid imbricatine. Construction of an ent-imbricatine framework

Ohba, Masashi,Imasho, Masaaki,Fujii, Tozo

, p. 83 - 89 (2007/10/03)

A chiral synthetic route to the amino esters 5 and 6, which contain the fundamental framework of ent-imbricatine (ent-3), has been developed as a prelude to the total synthesis of the starfish alkaloid imbricatine (3). The route started from the sulfur-co

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